fix parsing of accounts when there isn't any savings account
fix parsing of accounts when there isn't any savings account

Konubinix/weboob,Boussadia/weboob,franek/weboob,laurent-george/weboob,sputnick-dev/weboob,willprice/weboob,frankrousseau/weboob,sputnick-dev/weboob,yannrouillard/weboob,laurent-george/weboob,RouxRC/weboob,Boussadia/weboob,willprice/weboob,nojhan/weboob-devel,laurent-george/weboob,nojhan/weboob-devel,RouxRC/weboob,eirmag/weboob,frankrousseau/weboob,franek/weboob,franek/weboob,Boussadia/weboob,nojhan/weboob-devel,Konubinix/weboob,eirmag/weboob,frankrousseau/weboob,yannrouillard/weboob,eirmag/weboob,RouxRC/weboob,Konubinix/weboob,willprice/weboob,Boussadia/weboob,yannrouillard/weboob,sputnick-dev/weboob